Should I get a root canal?
- Root canals treat infected or badly inflamed pulp — the alternative is usually extraction, not "doing nothing."
- Modern root canals are typically no more uncomfortable than getting a filling, despite their reputation.
- A tooth that's had a root canal almost always needs a crown afterward to prevent it from cracking.
Why people ask this
Root canal has a reputation as one of the more feared dental procedures, so when it's recommended, people understandably want to know if it's really necessary and what the realistic alternative is.
What condition this addresses
Addresses an infected or irreversibly inflamed tooth nerve (pulp), typically from deep decay, a crack, or repeated dental work on the same tooth.
What dentists commonly consider
Dentists look at whether the infection or inflammation has reached the nerve (pulp) of the tooth, whether the tooth is still structurally salvageable, and whether the surrounding bone shows signs of a spreading abscess.
Typical reasons this may be recommended
- Deep decay that has reached the nerve
- A crack or chip that exposed the pulp
- Repeated dental work on the same tooth
- A visible or X-ray-confirmed abscess
Questions worth asking
Possible alternatives
- Extraction, usually followed by an implant, bridge, or partial denture to replace the tooth
- In rare, very early cases, monitoring — but this is uncommon once the nerve is clearly involved
Benefits & trade-offs
- A root canal saves your natural tooth and typically preserves more normal chewing function than replacing it
- It usually requires a crown afterward, adding to the total cost
- Extraction is often quicker up front but usually costs more overall once you factor in a replacement tooth
Risks & limitations
- Rarely, a canal can be missed or the infection can persist, requiring retreatment
- The tooth becomes more brittle afterward and typically needs a crown
- Severe fractures below the gumline may not be salvageable even with treatment
What happens if treatment is delayed
An infected nerve doesn't heal on its own — delaying can allow the infection to spread further into the jaw, and the tooth may become unsalvageable, requiring extraction instead.
What to expect, step by step
01
Diagnosis
X-rays and a cold/pressure test confirm the pulp is infected or inflamed beyond recovery.
02
Numbing and access
The area is fully numbed, and a small opening is made to access the infected pulp.
03
Cleaning the canals
Infected tissue is removed and the canals are cleaned, shaped, and disinfected.
04
Sealing
The canals are filled and sealed to prevent reinfection, and a temporary filling is placed.
05
Crown placement
In a follow-up visit, a permanent crown is usually placed to protect the now-brittle tooth.
Recovery
Most people feel some soreness for a few days, manageable with over-the-counter pain relief. Full healing of surrounding tissue can take a few weeks, but normal activity typically resumes the next day.
Cost considerations
Root canal cost varies by which tooth is treated (molars are more complex than front teeth) and whether a specialist (endodontist) is needed. It's usually less than the combined cost of extraction plus a replacement tooth.
Frequently asked questions
Is a root canal painful?
Most patients report it feels similar to getting a filling, since the area is fully numbed. The pain people associate with root canals usually comes from the infection beforehand, not the procedure itself.
What if I just have the tooth pulled instead?
That's a valid choice some people make, especially for back teeth. It's usually faster initially, but most people then need an implant, bridge, or denture to avoid shifting teeth and bite problems — which adds cost and time.
Can the infection come back after a root canal?
It's uncommon but possible, particularly if the tooth isn't crowned afterward or if a canal was missed. Persistent pain after treatment is worth a follow-up.
Do I need a specialist?
General dentists perform many root canals. Endodontists specialize in them and are often recommended for complex cases like molars with curved canals.
How soon do I need to decide?
Once the nerve is infected, it doesn't heal on its own, and delaying can allow the infection to spread. Ask your dentist how urgent your specific case is.
Last reviewed 7/15/2026.
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